Pith Number

pith:NLTR4X36

pith:2022:NLTR4X36OMZHUMCCKW2XKMCJCZ

not attested not anchored not stored refs pending

On the Complexity of Half-Guarding Monotone Polygons

Alex Pahlow, Erik Krohn, Hannah Miller Hillberg

arxiv:2204.13143 v1 · 2022-04-27 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NLTR4X36OMZHUMCCKW2XKMCJCZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:18:31.436139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ae71e5f7e73327a304255b5753049165ee29c31279e03e5a25586a9490aac3c

Aliases

arxiv: 2204.13143 · arxiv_version: 2204.13143v1 · doi: 10.48550/arxiv.2204.13143 · pith_short_12: NLTR4X36OMZH · pith_short_16: NLTR4X36OMZHUMCC · pith_short_8: NLTR4X36

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NLTR4X36OMZHUMCCKW2XKMCJCZ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6ae71e5f7e73327a304255b5753049165ee29c31279e03e5a25586a9490aac3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7e53d7c49b64fd0ac46340d13f903d61519682c3d0d3b620dfae6123583df5b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2022-04-27T18:32:26Z",
    "title_canon_sha256": "ec87149d3a184a056a237aa73f66e2322bf2a1d49c9d8fa16d4be0f29b0ed8a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13143",
    "kind": "arxiv",
    "version": 1
  }
}